Papers, Addresses, Reports: Patterns of Cell Death in Stalks of Normal and Injured Sorghum; Oxygen Absorption by Coal. Some Observations on Oil Treatment; A Computer Program for Meteorologic Data Reduction; Geographical Approaches to 7th...

Papers, Addresses, Reports: Twenty-five Years of Engineering Geology in Illinois; Science in the High School Curricula; Composition Diagrams for Forests; Diagrams to Show which Species Occur in Particular Plots or Stands; Flora and Ecological...

Papers, Addresses, Reports: Geological Records of a Rhythmic Nature (Address of the Retiring President); Our Exhaustible Resources of Minerals - What Should Be the Aims of a Conservation Program?; Advances in the Natural Renewable Resources...

Papers, Addresses, Reports: Applied Science as it Affects our Engineering; Looking Through Great Telescopes; John Wolf, Illinois Naturalist; Extract from the Report of the Section Chairman (Agriculture); Influence of age on the value of seed...

Papers, Addresses, Reports: Treasurer's Report; Resolutions Presented at the Elgin Meeting; Plant Communities of Glacier National Park, Montana; Mental Hygiene as a Problem of Public Health; The Year's Progress in Public Health and Medicine;...